10 Largest numbers in a matrix

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Md 2015-3-4

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https://ww2.mathworks.cn/matlabcentral/answers/181445-10-largest-numbers-in-a-matrix

回答： per isakson 2015-3-4

how to find 10 biggest numbers from a Matrix, also how to find the indexes of those 10 biggest numbers in the matrix. Thanks.

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Daniel 2015-3-4

Are you asking for a specific command, or how to go about creating a program that will get you that result from a series of calculations replicating what you yourself would do "by inspection"?

It should be straightforward how to do the latter. I don't think I can help with the former.

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Answer 1

per isakson 2015-3-4

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https://ww2.mathworks.cn/matlabcentral/answers/181445-10-largest-numbers-in-a-matrix#answer_170019

在 MATLAB Online 中打开

The largest value of magic(7) is 49

    M = magic(7);
    [ val, ix ] = sort(M(:),'descend');
    [rr,cc] = ind2sub( [7,7],ix(1:10) );
    >> [rr(1),cc(1)]
    ans =
         7     4
    >> M(rr(1),cc(1))
    ans =
        49
    >> M(rr(10),cc(10))
    ans =
        40